Consider a network based on dial-up phone lines, where sites communicate periodically, such as every night. Such networks are often configured with a server site and multiple client sites. The client sites connect only to the server, and exchange data with other clients by storing data at the server and retrieving data stored at the server by other clients. What is the advantage of such an architecture over one where a site can exchange data with another site only by first dialing it up?
Answer to relevant QuestionsDiscuss the relative advantages of centralized and distributed databases.To build a highly available distributed system, you must know what kinds of failures can occur.a. List possible types of failure in a distributed system.b. Which items in your list from part a are also applicable to a ...Give an example where lazy replication can lead to an inconsistent database state even when updates get an exclusive lock on the primary (master) copy. Describe how LDAP can be used to provide multiple hierarchical views of data, without replicating the base level data.Describe a good way to parallelize each of the following.a. The difference operationb. Aggregation by the count operationc. Aggregation by the count distinct operationd. Aggregation by the avg operatione. Left outer join, if ...
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